Question

Completa las igualdades

Answer 1

Respuesta:

400 + 150 = 500 + 50

550 = 550

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37 - 20 = 27 - 10

17 = 17

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38 - 17 = 28 - 7

21 = 21

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14 + 6 = 4 + 16

20 = 20

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38 + 17 = 28 + 27

55 = 55

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54 - 26 = 14 + 14

28 = 28

Answer 2

Explicación paso a paso:

400+150=500+50

37-20=27-10

38-17=28-7

14+6=4+16

38+17=28+27

54-26=14+14

listo aquí está